The foreign ministers of South Korea and China are set to hold bilateral talks on Sunday to discuss ways to strengthen their cooperation on pressing for North Korea to denuclearize, a Seoul diplomat said.

The one-on-one meeting between Foreign Minister Yun Byung-se and his Chinese counterpart Wang Yi comes days after President Park Geun-hye and Chinese President Xi Jinping agreed to work closely together to end Pyongyang’s nuclear program during their first summit in Beijing.